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Airworthiness Directive

AD 99-06-01 64 FR 11757 Active

Federal Aviation Administration · 14 CFR part 39

Requires repetitively inspecting for cracks at the elevator outboard hinge attachment on the horizontal stabilizer rear spar on certain The New Piper Aircraft, Inc.

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FR document
99-5727
Amendment
39-11065
Published
1999-03-10
Effective
1999-04-20
Models covered
1

Last live check: 2026-08-19

Printed from https://aircraftdirectives.com/ad/99-06-01 · AircraftDirectives restates official FAA and manufacturer records; the official sources named on this sheet control. Not an airworthiness determination.

This page is a reference Record, not an airworthiness or compliance determination. Official FAA and manufacturer sources control over our restatement, subject to governing law. Check applicability, current requirements and incorporated documents before acting. The owner or operator remains responsible for airworthiness and required records under 14 CFR 91.403 and 91.417, as applicable. Terms of Use: /terms.

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AD

99-06-01

FR doc 99-5727 · 64 FR 11757

AD 99-06-01Published 1999-03-10Effective 1999-04-20

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Requires repetitively inspecting for cracks at the elevator outboard hinge attachment on the horizontal stabilizer rear spar on certain The New Piper Aircraft, Inc.

Supersedes an earlier directive that is not in our index. See the official text.

Full official abstract

This amendment supersedes Airworthiness Directive (AD) 81-15- 04 R1, which currently requires repetitively inspecting for cracks at the elevator outboard hinge attachment on the horizontal stabilizer rear spar on certain The New Piper Aircraft, Inc. (Piper) Models PA-31, PA-31-300, PA-31-325, PA-31-350, and PA-31P-350 airplanes, and if cracks are found, incorporating a spar and hinge bracket assembly kit. This AD requires repetitively inspecting the horizontal rear spar in the area of the outboard hinge attachment and the outboard hinge attach bracket for cracks. When cracks are found or at a certain accumulation of time-in-service (TIS), this AD also requires modifying the horizontal stabilizer spar by incorporating an improved stabilizer spar and hinge bracket assembly kit that will terminate the repetitive inspections. This AD is prompted by several field reports of cracks found during routine inspections on airplanes already in compliance with AD 81-15-04 R1. The actions specified by this AD are intended to prevent failure of the horizontal stabilizer rear spar caused by cracks at the elevator outboard hinge attachment, which could result in loss of control of the airplane.

More directives for Piper PA-31 Navajo/Cheyenne

  1. AD 2017-10-20 Airworthiness Directives; Piper Aircraft, Inc. Airplanes Effective 2017-06-29
  2. AD 2017-02-06 Airworthiness Directives; Piper Aircraft, Inc. Airplanes Effective 2017-02-22
  3. AD 2016-08-18 Airworthiness Directives; Piper Aircraft, Inc. Airplanes Effective 2016-06-06
  4. AD 2016-05-01 Airworthiness Directives; Piper Aircraft, Inc. Airplanes Effective 2016-04-15
  5. AD 2015-24-05 Airworthiness Directives; Piper Aircraft, Inc. Airplanes Effective 2016-01-12

All Piper PA-31 Navajo/Cheyenne directives

View on Federal Register (opens in a new tab) View this AD in FAA DRS (opens in a new tab) Print AD packet (opens the full Federal Register document in a new tab)

Applies to 1 model in our index